public SimpleRelocationSection(ISection section, SymbolTable <uint> symbols)
{
Section = section;
var count = section.GetContents().Length / Relocation.SIZE;
Relocations = new Relocation[count];
for (int i = 0, start = 0; i < count; i++, start += Relocation.SIZE)
{
Relocations[i] = new Relocation(section.GetContents(), start, symbols);
}
}
/// <summary>
/// Get the compilers used to create an ELF binary.
/// </summary>
/// <param name="elf">ELF binary</param>
/// <returns>List of compiler tools from the .comment section</returns>
internal static ELFCompiler[] GetELFCompilers(IELF elf)
{
ISection commentSection = elf.Sections.Where(s => s.Name == ".comment").FirstOrDefault();
if (commentSection != null)
{
try
{
string[] commentData = NullTermAsciiToStrings(commentSection.GetContents());
var compilers = new ELFCompiler[commentData.Length];
for (int i = 0; i < commentData.Length; i++)
{
compilers[i] = new ELFCompiler(commentData[i]);
}
return(compilers);
}
// Catch cases when the .comment section is not formatted the way we expect it to be.
catch (Exception ex) when(ex is ArgumentException || ex is ArgumentNullException)
{
return(new ELFCompiler[] { new ELFCompiler(string.Empty) });
}
}
else
{
return(new ELFCompiler[] { new ELFCompiler(string.Empty) });
}
}
protected byte[] GetData(ISection section, ulong size, ulong offset)
{
Log.Debug($"AnELF.GetData: section == {section.Name}; size == {size}; offset == {offset:X}");
byte[] data = section.GetContents();
Log.Debug($" data length: {data.Length} (long: {data.LongLength})");
Log.Debug($" offset: {offset}; size: {size}");
if ((ulong)data.LongLength < (offset + size))
{
return(EmptyArray);
}
if (size == 0)
{
size = (ulong)data.Length - offset;
}
var ret = new byte[size];
checked {
Array.Copy(data, (int)offset, ret, 0, (int)size);
}
return(ret);
}
private async Task ProcessFile(
string file,
bool hasUnwindingInfo,
bool hasDwarfDebugInfo,
ISection buildId,
IELF elf)
{
_logger.LogInformation("Contains unwinding info: {hasUnwindingInfo}", hasUnwindingInfo);
_logger.LogInformation("Contains DWARF debug info: {hasDwarfDebugInfo}", hasDwarfDebugInfo);
var builder = new StringBuilder();
var bytes = buildId.GetContents().Skip(16);
foreach (var @byte in bytes)
{
builder.Append(@byte.ToString("x2"));
}
var buildIdHex = builder.ToString();
if (!(await _client.SendAsync(new HttpRequestMessage(HttpMethod.Head, _backendUrl)
{
Headers = { { "debug-id", buildIdHex } }
}))
.IsSuccessStatusCode)
{
return;
}
// Better would be if `ELF` class would expose its buffer so we don't need to read the file twice.
// Ideally ELF would read headers as a stream which we could reset to 0 after reading heads
// and ensuring it's what we need.
using (var fileStream = File.OpenRead(file))
{
var postResult = await _client.SendAsync(new HttpRequestMessage(HttpMethod.Post, _backendUrl)
{
Headers = { { "debug-id", buildIdHex } },
Content = new MultipartFormDataContent(
// TODO: add a proper boundary
$"Upload----WebKitFormBoundary7MA4YWxkTrZu0gW--")
{
{ new StreamContent(fileStream), file }
}
});
if (!postResult.IsSuccessStatusCode)
{
_logger.LogError("{statusCode} for file {file}", postResult.StatusCode, file);
if (postResult.Headers.TryGetValues("X-Error-Code", out var code))
{
_logger.LogError("Code: {code}");
}
}
else
{
_logger.LogInformation("Sent file: {file}");
}
}
#if DEBUG
_logger.LogInformation("Build Id: {buildIdHex}", buildIdHex);
_logger.LogInformation("Class: {class}.", elf.Class);
_logger.LogInformation("HasSectionsStringTable: {hasSectionsStringTable}.", elf.HasSectionsStringTable);
_logger.LogInformation("HasSectionHeader: {hasSectionHeader}.", elf.HasSectionHeader);
foreach (var section in elf.Sections)
{
_logger.LogInformation("Section: {section}.", section);
}
_logger.LogInformation("HasSegmentHeader: {hasSegmentHeader}.", elf.HasSegmentHeader);
foreach (var segment in elf.Segments)
{
_logger.LogInformation("Segment: {segment}.", segment);
}
_logger.LogInformation("Endianness: {Eedianness}.", elf.Endianess);
_logger.LogInformation("Machine: {machine}.", elf.Machine);
_logger.LogInformation("Type: {type}.", elf.Type);
#endif
}